Glass-drawing apparatus.



' PATENTED JULY 3, 1906. J.--R.' SPEER & G. H. HARVEY. GLASS DRAWING APPARATUS.

APPLICATION FILED NOV.16 1905.

WITNESSES:

W 2/1/260 aw ATTDRNEVS I UNITED STATES PATENT oEEicE- JAMES RAMSEY SPEER, OF PITTSBURG, AND GEORGE H. "HARVEY. OF GLENFIELD, PENNSYLVANIA, ASSIGNORS TO BROWNSVTLLE GLASS COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

GLASS-DRAWING APPARATUS- To "11/ whom it may concern:

Be it known that we, JAMES RAMsEY SPEEE residing at Pittsburg, and GEORGE H. HAR- vEY, residing at Glenfield, in the county of Allegheny and State of Pennsylvania, citizens of the United States, have invented or discovered new and useful Improvements in Glass-Drawing Apparatus, of which the following is a specification.

Our invention relates to apparatus for making glass, and has particular reference to the manufacture of hollow cylinders, though it is not restricted to the same. It has also special reference to apparatus for moving the drawn glass from a vertical to a horizontal position. By our invention the drawnlass cylinders are preferably suspended om their upper ends and swung after having been cracked off from the glass in the drawing pot or tank into a horizontal position,

portions between the top and bottom of the cylinder being preferably supported by arms. It will be observed that we causethe top of the cylinders to be swung down instead of the bottom-to be swung out, as is the usual practice, and that the cylinders are at once swung away from over the pot or furnace, so that the drawing of another cylinder may be pre' ceded'with even before the last cylinder has been entirely lowered.

Our invention also relates to an improved punty or drawin -tool, so constructed that it may be separate into sections.

Referring to the drawings, which form a part of this specification, Figure 1 is an elevation, partly 1n section, showing one form of our invention; Fig. 2, a section on the line 11 11 of Fig. 1; Fig. 3, a plan view of the clamping device for securing the drawin ring or iron to the draft mechanism, and ig. 4 an elevation of a second form of our invention.

On the drawings, 1 represents diagrammatically an means for containing the molten lass an maintaining it in a condition for rawing. It may be a furnace or reheating device of any desired kind, the same not constituting in its specific construction any part of the present invention.-

2 represents a glass cylinder drawn from the furnace 1 and attached at its upper end to the lower edge of the drawing ring or iron 3, which-is temporarily secured beneath the Specification of Letters Patent.

Application filed November 16', 1905- Serial No. 287,599-

Patented July 3, 1906.

cap or plate 4 by means of the two semicircular arms 5, pivoted together on thepin:6,"

held in place by the hingestrap 7, secured to the top of thecap 4. The ring 3 is provided externally with the annular oove 8 to receive the annular ribs 9 on t e arms 5.

around'the cap 4..

Screw'ed into the top of the cap 4 is the pipe 10, provided with the ring or lug '11, by which the drawing-tool and glass cylinder may be supported. The lug 11 sits on the fork 12, the pipe 10 being between the members of the fork. The fork 12 is carried by the arm or jib 13, which may be raised and (lowered by any mechanism suitable for the purpose. It is no part of the present invention to provide any means to raise or lower the drawing-tool.

gt. represents a slip-ring for securing the arms 5 Swinging on a pin '14 near. the floor is a bed or carria e capable of being swung from' a horizonta to a. vertical position by the cord 15 I passingover the pulley 16; but other means for raising the carriage will readily suggest themselves to those conversant with the art; The fixed bar 17 forms a rest for the bed to hold it in its vertical position.

The bed is preferably composed of the bar 18, having at least its upper end hollow to provide a passage-way for the car 19, having the wheels 20, guided in the grooves 21 in the bar. The car is rovided with a pair of arms 22, which exten one. on each side of the c linder and have each a notch 23 near its on er end ti. engage the pins 24 on the ring oriron 3.

The car 19 is provided with the pinion 25,

which rolls alongthe fixed rack 26 on the bar 18. Rotatable'with the pinion is a ratchet.- wheel 27, with which engages the pawl 28 to hold the car in any position to which it may be elevated. The car is preferably raised and lowered by means of the cord 29, passing over the pulley 30 on the bar 18; but any othr suitable means may be provided whether hand or power operated.

31 represents su ports on the bar 18 to support the cylin er as it is being swung down on the pin 14. These supports are shown fixed on the bar; but our invention is not limited to this construction. Wedo not limit ourselves to any specific travel of the car 19, as it may travel the Whole length of the her, if dosir id, and be kept with its arms in oontset with during the Whole travel oi" the drawing-tool. Alter the oylim'ler Zluts been drawn its bottom is cracked oil in the usual iminner, the carriage is brought up to its vertical position, as shown, and the arms raised, so as to engage the pins 24. The itX'ZZlS are then nod and thee-rip 4 and its emineeted ports raised or removed to permit thoswinging down ol the top of the eylinrzlor, The bar 18 lowered in any approved manner, by the cord 15, the bin having been started downward in any desired manner until the center of gravity of the carriage and its load passes the vertical plane which includes the pivot 14. The manner of causing the carriage to descend is not material, ELS it can be accomplished many Ways. For exzmiple, as shown in the as 24-.

F'.g.-4, a pinion. 32 on the pin 14 is caused to i move by'the pinion 33 by the application oi any convenient power to the shalt 34, on which the pinion 33 is scoured.

After the cylinder 2 has been moved from over the furnace at lreshly hozitod ring 1% is socured to the oep 4' and another cylinder is drawn and removed as before.

The 111311116! of using the invention may be varied. For example, the'ciirrizwo may be raised to vertical position with. the arms 22 below the pins 24 and then the cylinder lowered, so that the pins shall rest on the arms.

This would zilso be the prooedure Where the arms 22 pro fixed on the be)? 18, as shown on Fig. 4-.

The movzt bility oi the arms 22 has a further purpose "namely, to enable the support to be adjustable to various lengths of cylinders. I

Having described our invention, We claim I. in the niznuihmture of viirtieel drawn glass, mean to support and swing the glass i downwardly on a center relatively distant from the top oi th glsrs.

In the insflunieture of vertical drawn glass, it HU'P'PU-ll) for the glass, and means for swinging the top of said support downwardly,

3. in the imunil'eoture of vertical drawn glass, :1 support l OIihB glass having thereon an adjustable member to support drawn articles of verious lengths.

4, in the manufacture of glass, a drawingtool consisting of a drswingiing and e cap therefor detachable therefrom, and means to support and swing the glass with the ring thereon downwardly on a center relatively distant from the top of the glass.

Signed zit Pittsburg, Pennsylvania, this 13th day oi November, 1905.

JAMES RAMSEY SPEER. GEORGE ii. I IARVEY, Witnesses:

J. M. Connor, 0. 0. RICHARDSON. 

